I'm licensed to fly multi-engine aircraft. I currently fly the DA-42NG.
However, nowhere in my training and in the official POH was I introduced to procedures for handing a dual-engine failure in-flight.
There's no mention of a Best Glide Speed whatsoever.
I'm assuming this is the case for most, or maybe all GA Twin-Engine airplanes. I know jets can glide for some time without any power.
Question is - can GA airplanes? I know it won't fall like a rock - but there's got to be some science to follow here, right? Why haven't the manufactures mentioned it even once? Why isn't it part of the training?